packages/contracts/src/utils/web3_wrapper.ts


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import { devConstants, env, EnvVars, web3Factory } from '@0xproject/dev-utils';
import { prependSubprovider } from '@0xproject/subproviders';
import { Provider } from '@0xproject/types';
import { Web3Wrapper } from '@0xproject/web3-wrapper';

import { coverage } from './coverage';

export const txDefaults = {
    from: devConstants.TESTRPC_FIRST_ADDRESS,
    gas: devConstants.GAS_ESTIMATE,
};
const providerConfigs = { shouldUseInProcessGanache: true };
export const provider = web3Factory.getRpcProvider(providerConfigs);
const isCoverageEnabled = env.parseBoolean(EnvVars.SolidityCoverage);
if (isCoverageEnabled) {
    prependSubprovider(provider, coverage.getCoverageSubproviderSingleton());
}
export const web3Wrapper = new Web3Wrapper(provider);